Self-balancing modular agar slant rack

Inspired by https://www.thingiverse.com/thing:7260441
I wanted it modulat so that it can fit into my humidity chamber.
This is designed for my

  • 200 mL flasks,
  • 30 mm diameter
  • 150 mm length;
  • slant at 15 degree
    The goal to have stable rack that will not flip because you poured too much agar.

Should be customizable, if you do not mind editing FreeCAD files :))
I will post final edits, printing instructions and the make once I do a print.

Update Apr 25 2026: added traction sleeve and ventilation. Still not happy with estimated printing time ~ 3h (by slic3r and Repetier) will work more to see if I can reduce it.
Version 2 of FreeCad uses variables - for easier customization. I will wrap it up and and add annotations soon.

Update May 3 2026: version 2.1 fine tuned for my plastic flasks:

  • 33mm dia
  • slant at 16 degree
  • lighter base version for better cooling and less material